Identification of multiple flaws in dams using inverse analysis based on hydro-mechanical XFEM and level sets
- verfasst von
- Long Nguyen-Tuan, Srivilliputtur Subbiah Nanthakumar, Tom Lahmer
- Abstract
Model-based inverse problems emerge as an alternative means to reconstruct buried objects in structures. In this paper, we propose a method to detect multiple flaws in massive permeable structures. The extended finite element method (XFEM) is used as a tool to solve the coupled hydro-mechanical problem. Simultaneously, level set front propagation defined by Hamilton–Jacobi equations is adopted for solving the inverse problem of finding the material changes from measured data. A system of equations is proposed to derive the shape derivatives of the objective functions. The method is then applied to detect possible flaws in a masonry dam. The results obtained indicate that the method enables the efficient identification of hidden flaws in masonry dams.
- Organisationseinheit(en)
-
Institut für Kontinuumsmechanik
- Externe Organisation(en)
-
Bauhaus-Universität Weimar
- Typ
- Artikel
- Journal
- Computers and geotechnics
- Band
- 110
- Seiten
- 211-221
- Anzahl der Seiten
- 11
- ISSN
- 0266-352X
- Publikationsdatum
- 06.2019
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Geotechnik und Ingenieurgeologie, Angewandte Informatik
- Elektronische Version(en)
-
https://doi.org/10.1016/j.compgeo.2019.02.006 (Zugang:
Geschlossen)
